Ok dpkg debug output gives the following additional informations: dpkg --debug=100 --unpack xlibmesa-gl-dev_4.3.0.dfsg.1-6_i386.deb
D000100: setupvnamevbs main=`/usr/share/nvidia-glx/diversions-X11R6/libGL.a' tmp=`/usr/share/nvidia-glx/diversions-X11R6/libGL.a.dpkg-tmp' new=`/usr/share/nvidia-glx/diversions-X11R6/libGL.a.dpkg-new' D000100: tarobject nonexistent dpkg: error processing xlibmesa-gl-dev_4.3.0.dfsg.1-6_i386.deb (--unpack): unable to create `./usr/X11R6/lib/libGL.a': No such file or directory /usr/share/nvidia-glx is not existing so it's clear that this fails. I don't know what the diversions stuff is about (I'm actualy searching docs to find out) I'm lately using the nvidia driver from the nvidia .bin file. I used the nvidia .deb files in the past but they're uninstalled completly. A user on the debian-user-german list claims to have the same problem with the xlibmesa-gl package. If you've a hint how to solve this let me know. Sven -- It ain't so bad bein' alone if you know it'll never last nothing lasts forever 'cept the certainly of change and love's the same It's a game with simple rules If you think it's forever then you're nothing but a fool [Venerea - Love Is A Battlefield Of Wounded Hearts]

